The Tor Browser: content/media/directshow/DirectShowDecoder.cpp@97036ab72558

Conditionally force memory storage according to privacy.thirdparty.isolate;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.

     1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

     2 /* vim:set ts=2 sw=2 sts=2 et cindent: */

     3 /* This Source Code Form is subject to the terms of the Mozilla Public

     4  * License, v. 2.0. If a copy of the MPL was not distributed with this

     5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

     7 #include "DirectShowDecoder.h"

     8 #include "DirectShowReader.h"

     9 #include "MediaDecoderStateMachine.h"

    10 #include "mozilla/Preferences.h"

    11 #include "mozilla/WindowsVersion.h"

    13 namespace mozilla {

    15 MediaDecoderStateMachine* DirectShowDecoder::CreateStateMachine()

    16 {

    17   return new MediaDecoderStateMachine(this, new DirectShowReader(this));

    18 }

    20 /* static */

    21 bool

    22 DirectShowDecoder::GetSupportedCodecs(const nsACString& aType,

    23                                       char const *const ** aCodecList)

    24 {

    25   if (!IsEnabled()) {

    26     return false;

    27   }

    29   static char const *const mp3AudioCodecs[] = {

    30     "mp3",

    31     nullptr

    32   };

    33   if (aType.EqualsASCII("audio/mpeg") ||

    34       aType.EqualsASCII("audio/mp3")) {

    35     if (aCodecList) {

    36       *aCodecList = mp3AudioCodecs;

    37     }

    38     return true;

    39   }

    41   return false;

    42 }

    44 /* static */

    45 bool

    46 DirectShowDecoder::IsEnabled()

    47 {

    48   return Preferences::GetBool("media.directshow.enabled");

    49 }

    51 DirectShowDecoder::DirectShowDecoder()

    52 {

    53   MOZ_COUNT_CTOR(DirectShowDecoder);

    54 }

    56 DirectShowDecoder::~DirectShowDecoder()

    57 {

    58   MOZ_COUNT_DTOR(DirectShowDecoder);

    59 }

    61 } // namespace mozilla

The Tor Browser / file revision

content/media/directshow/DirectShowDecoder.cpp@97036ab72558

content/media/directshow/DirectShowDecoder.cpp